# coding: utf-8

# 識別する関数
def func(num):
    num = int(num)
    if 400 <= num and num <= 599:
        return 8
    elif 600 <= num and num <= 799:
        return 7
    elif 800 <= num and num <= 999:
        return 6
    elif 1000 <= num and num <= 1199:
        return 5
    elif 1200 <= num and num <= 1399:
        return 4
    elif 1400 <= num and num <= 1599:
        return 3
    elif 1600 <= num and num <= 1799:
        return 2
    else:
        return 1


if __name__ == "__main__":
    num = input()
    print(func(num)) def func(num):
    num = int(num)
    if 400 <= num and num <= 599:
        return 8
    elif 600 <= num and num <= 799:
        return 7
    elif 800 <= num and num <= 999:
        return 6
    elif 1000 <= num and num <= 1199:
        return 5
    elif 1200 <= num and num <= 1399:
        return 4
    elif 1400 <= num and num <= 1599:
        return 3
    elif 1600 <= num and num <= 1799:
        return 2
    else:
        return 1 func num = int(num) num int(num) int num if 400 <= num and num <= 599:
        return 8
    elif 600 <= num and num <= 799:
        return 7
    elif 800 <= num and num <= 999:
        return 6
    elif 1000 <= num and num <= 1199:
        return 5
    elif 1200 <= num and num <= 1399:
        return 4
    elif 1400 <= num and num <= 1599:
        return 3
    elif 1600 <= num and num <= 1799:
        return 2
    else:
        return 1 400 <= num and num <= 599 400 <= num 400 num num <= 599 num 599 return 8 8 elif 600 <= num and num <= 799:
        return 7
     600 <= num and num <= 799 600 <= num 600 num num <= 799 num 799 return 7 7 elif 800 <= num and num <= 999:
        return 6
     800 <= num and num <= 999 800 <= num 800 num num <= 999 num 999 return 6 6 elif 1000 <= num and num <= 1199:
        return 5
     1000 <= num and num <= 1199 1000 <= num 1000 num num <= 1199 num 1199 return 5 5 elif 1200 <= num and num <= 1399:
        return 4
     1200 <= num and num <= 1399 1200 <= num 1200 num num <= 1399 num 1399 return 4 4 elif 1400 <= num and num <= 1599:
        return 3
     1400 <= num and num <= 1599 1400 <= num 1400 num num <= 1599 num 1599 return 3 3 elif 1600 <= num and num <= 1799:
        return 2
     1600 <= num and num <= 1799 1600 <= num 1600 num num <= 1799 num 1799 return 2 2 return 1 1 num num if __name__ == "__main__":
    num = input()
    print(func(num)) __name__ == "__main__" __name__ "__main__" num = input() num input() input print(func(num)) print func(num) func num def func(num):
    num = int(num)
    if 400 <= num and num <= 599:
        return 8
    elif 600 <= num and num <= 799:
        return 7
    elif 800 <= num and num <= 999:
        return 6
    elif 1000 <= num and num <= 1199:
        return 5
    elif 1200 <= num and num <= 1399:
        return 4
    elif 1400 <= num and num <= 1599:
        return 3
    elif 1600 <= num and num <= 1799:
        return 2
    else:
        return 1 def func(num):
    num = int(num)
    if 400 <= num and num <= 599:
        return 8
    elif 600 <= num and num <= 799:
        return 7
    elif 800 <= num and num <= 999:
        return 6
    elif 1000 <= num and num <= 1199:
        return 5
    elif 1200 <= num and num <= 1399:
        return 4
    elif 1400 <= num and num <= 1599:
        return 3
    elif 1600 <= num and num <= 1799:
        return 2
    else:
        return 1 func num = input() input() num
# coding: utf-8

# 識別する関数
def func(num):
    num = int(num)
    if 400 <= num and num <= 599:
        return 8
    elif 600 <= num and num <= 799:
        return 7
    elif 800 <= num and num <= 999:
        return 6
    elif 1000 <= num and num <= 1199:
        return 5
    elif 1200 <= num and num <= 1399:
        return 4
    elif 1400 <= num and num <= 1599:
        return 3
    elif 1600 <= num and num <= 1799:
        return 2
    else:
        return 1


if __name__ == "__main__":
    num = input()
    print(func(num))
